Editorial: Fix AOs that no longer return a [[NormalizedDuration]] field

Here are a couple of stragglers from PR #2943.

Author: ptomato

spec/plaindate.html

@@ -903,8 +903,7 @@ <h1>
           1. Let _isoDateTime_ be CombineISODateAndTimeRecord(_temporalDate_.[[ISODate]], MidnightTimeRecord()).
           1. Let _isoDateTimeOther_ be CombineISODateAndTimeRecord(_other_.[[ISODate]], MidnightTimeRecord()).
           1. Let _destEpochNs_ be GetUTCEpochNanoseconds(_isoDateTimeOther_).
-          1. Let _result_ be ? RoundRelativeDuration(_duration_, _destEpochNs_, _isoDateTime_, ~unset~, _temporalDate_.[[Calendar]], _settings_.[[LargestUnit]], _settings_.[[RoundingIncrement]], _settings_.[[SmallestUnit]], _settings_.[[RoundingMode]]).
-          1. Set _duration_ to _result_.[[NormalizedDuration]].
+          1. Set _duration_ to ? RoundRelativeDuration(_duration_, _destEpochNs_, _isoDateTime_, ~unset~, _temporalDate_.[[Calendar]], _settings_.[[LargestUnit]], _settings_.[[RoundingIncrement]], _settings_.[[SmallestUnit]], _settings_.[[RoundingMode]]).
         1. Let _result_ be ! UnnormalizeDuration(_duration_, ~day~).
         1. If _operation_ is ~since~, set _result_ to CreateNegatedTemporalDuration(_result_).
         1. Return _result_.

spec/zoneddatetime.html

@@ -1214,8 +1214,8 @@ <h1>
         1. Let _resolvedOptions_ be ? GetOptionsObject(_options_).
         1. Let _settings_ be ? GetDifferenceSettings(_operation_, _resolvedOptions_, ~datetime~, « », ~nanosecond~, ~hour~).
         1. If TemporalUnitCategory(_settings_.[[LargestUnit]]) is not ~date~, then
-          1. Let _diffRecord_ be DifferenceInstant(_zonedDateTime_.[[EpochNanoseconds]], _other_.[[EpochNanoseconds]], _settings_.[[RoundingIncrement]], _settings_.[[SmallestUnit]], _settings_.[[RoundingMode]]).
-          1. Let _result_ be ! UnnormalizeDuration(_diffRecord_.[[NormalizedDuration]], _settings_.[[LargestUnit]]).
+          1. Let _internalDuration_ be DifferenceInstant(_zonedDateTime_.[[EpochNanoseconds]], _other_.[[EpochNanoseconds]], _settings_.[[RoundingIncrement]], _settings_.[[SmallestUnit]], _settings_.[[RoundingMode]]).
+          1. Let _result_ be ! UnnormalizeDuration(_internalDuration_, _settings_.[[LargestUnit]]).
           1. If _operation_ is ~since~, set _result_ to CreateNegatedTemporalDuration(_result_).
           1. Return _result_.
         1. NOTE: To calculate differences in two different time zones, _settings_.[[LargestUnit]] must be a time unit, because day lengths can vary between time zones due to DST and other UTC offset shifts.